The other unit serves the school's cafeteria. Both have been breaking down regularly and have deteriorated so much that they cannot be trusted to work much longer, according to companies that examined the units.

The town had set aside $136,000 in its capital improvement budget to replace the units, which are 25 years old. However, all of the contractors' bids came in higher than that amount, so the town council voted unanimously last week to allocate another $60,000.